One of the many reasons I enjoy these lessons is... They tend to have a perfect mixture of knowledge and comedy.

whoever designed this thing is a master engineer. Notice how bones last thousands of years unlike a mercedes benz chasis.

I fell on my coccyx when I was 10 years old from a tree branch that was 8 feet off the ground and I feel the pain still today.

incredibly underrated

Sam, you make it so interesting and understandable. Thank you.

Thank you so much for your videos. I do have to brag that I got a 10/10 in my intro level anatomy & physiology class and your videos played a great part in me actually achieving that, since our professor isn't used to teaching introductory classes and would often go into way too much detail than necessarily and that would only confuse me more. Lots of love from Serbia 💙

Excellent video. Im a craniosacral therapist

Sacroiliac Joint...Yes please! 🙋‍♂

Pitch perfect delivery.  Wonderfully explained.  Thank you!

I love that he always has an appropriate model for every aspect of the anatomy he wants to describe😀

You are a fantastic teacher!

Thank you Sam for learning these things

Somehow watching your videos kinda makes me feel that I'm watching special episodes from M.D. House!😂

Can't thank you enough for posting this. The closeup shots of your models as well as your explanations, have been very helpful to my work!

Excellent Description.

Yet another great lesson 👍. I was unaware that the sacrum were separate vertebrae until we stop growing 😮…I always thought they fused very early on like the kneecaps (patella). I just assumed🙄that this came about when toddlers begin walking. Amazing stuff Professor Doc😊. Thank you for always being so thorough.

So glad I came across this chat! Thank you!!

You are the best,thank you so much ❤

Thank you, at least i now have information about how my lower back and now my S joints and ligaments are supposed to work. Unfortunately my pain comes from both sides of the S joints to the end. The back pain was at first the l 4-5 joints and now travel deeper to the s joints. The pain is more intense to the point that both legs go numb and then it relaxes. I just had a appointment with my doctor and was impressed with the information that i have learned, THANK YOU.

I subconsciously prayed for you! Thank you so much you are my favorite celebrity:)